debt as a means to i) deliver intergenerational transfers or ii) smooth tax distortions. We find that certain politico …

policy. The model predicts population ageing to lead to larger social security systems, but eventually lower benefits per … retiree. Under realistic parameter values, it predicts a social-security tax rate close to the actual one, but higher than the … Ramsey tax rate. Closed-form solutions for the case with endogenous labor supply, tax distortions, and multiple policy …